linux-kernel - Re: [PATCH v4 17/79] include/uapi/sound/emu10k1.h: added EMU10K1 version of DECLARE

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Message-ID: <s5hzizkimlc.wl-tiwai@suse.de>
Date:	Thu, 15 Oct 2015 10:04:47 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	"Mikko Rapeli" <mikko.rapeli@....fi>
Cc:	<linux-kernel@...r.kernel.org>, <alsa-devel@...a-project.org>,
	"Jaroslav Kysela" <perex@...ex.cz>, <linux-api@...r.kernel.org>
Subject: Re: [PATCH v4 17/79] include/uapi/sound/emu10k1.h: added EMU10K1 version of DECLARE_BITMAP macro

On Thu, 15 Oct 2015 07:55:55 +0200,
Mikko Rapeli wrote:
> 
> Fixes userspace compilation error:
> 
> error: expected specifier-qualifier-list before ‘DECLARE_BITMAP’
>   DECLARE_BITMAP(gpr_valid, 0x200); /* bitmask of valid initializers */
> 
> DECLARE_BITMAP macro is not meant for userspace headers and thus
> added here as private copy for emu10k.h.
> 
> Fix was suggested by Arnd Bergmann <arnd@...db.de> in message
> <2168807.4Yxh5gl11Q@...rfel> and Takashi Iwai <tiwai@...e.de>
> in message <s5h1thx88tk.wl-tiwai@...e.de> on lkml.
> 
> Signed-off-by: Mikko Rapeli <mikko.rapeli@....fi>

Applied, thanks.


Takashi

> ---
>  include/uapi/sound/emu10k1.h | 14 +++++++++++---
>  1 file changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/include/uapi/sound/emu10k1.h b/include/uapi/sound/emu10k1.h
> index ec1535b..5175e16 100644
> --- a/include/uapi/sound/emu10k1.h
> +++ b/include/uapi/sound/emu10k1.h
> @@ -34,6 +34,14 @@
>  
>  #define EMU10K1_FX8010_PCM_COUNT		8
>  
> +/*
> + * Following definition is copied from linux/types.h to support compiling
> + * this header file in userspace since they are not generally available for
> + * uapi headers.
> + */
> +#define __EMU10K1_DECLARE_BITMAP(name,bits) \
> +	unsigned long name[(bits) / (sizeof(unsigned long) * 8)]
> +
>  /* instruction set */
>  #define iMAC0	 0x00	/* R = A + (X * Y >> 31)   ; saturation */
>  #define iMAC1	 0x01	/* R = A + (-X * Y >> 31)  ; saturation */
> @@ -300,7 +308,7 @@ struct snd_emu10k1_fx8010_control_old_gpr {
>  struct snd_emu10k1_fx8010_code {
>  	char name[128];
>  
> -	DECLARE_BITMAP(gpr_valid, 0x200); /* bitmask of valid initializers */
> +	__EMU10K1_DECLARE_BITMAP(gpr_valid, 0x200); /* bitmask of valid initializers */
>  	__u32 __user *gpr_map;		/* initializers */
>  
>  	unsigned int gpr_add_control_count; /* count of GPR controls to add/replace */
> @@ -313,11 +321,11 @@ struct snd_emu10k1_fx8010_code {
>  	unsigned int gpr_list_control_total; /* total count of GPR controls */
>  	struct snd_emu10k1_fx8010_control_gpr __user *gpr_list_controls; /* listed GPR controls */
>  
> -	DECLARE_BITMAP(tram_valid, 0x100); /* bitmask of valid initializers */
> +	__EMU10K1_DECLARE_BITMAP(tram_valid, 0x100); /* bitmask of valid initializers */
>  	__u32 __user *tram_data_map;	  /* data initializers */
>  	__u32 __user *tram_addr_map;	  /* map initializers */
>  
> -	DECLARE_BITMAP(code_valid, 1024); /* bitmask of valid instructions */
> +	__EMU10K1_DECLARE_BITMAP(code_valid, 1024); /* bitmask of valid instructions */
>  	__u32 __user *code;		  /* one instruction - 64 bits */
>  };
>  
> -- 
> 2.5.0
> 
> 
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